Tray



FIG. 1 is a perspective view of a tray showing my new design;

FIG. 2 is a front view thereof, the rear, left side, and right side views being identical thereto;

FIG. 3 is a top view thereof; and,

FIG. 4 is a bottom view thereof.

The broken lines are environmental only and form no part of the claimed design. 

The ornamental design for a tray, as shown and described. 